Method of making collapsible boxes



Dc 4",A 1928. I 1,694,126

F. M. JosLlN METHOD OF MAKING COLLAPSIBLE BOXES Filed March 26, 1927 Y to get it into a fiat condition for purposes.

Patented Dec. 4, 1928.

UNITED STATES PATENT OFFICE.

Applioation led latch 26, 1927. Serial No. 178,581.

This invention relates to a method ofl making a collapsible box, and more articularly to a method of making a box or containing eggs.

One ob ect of the invention is to provide a method of producing a box easily and economically from a single integral blank of material such as fiber board or the like.

A further object is to provide a process resulting in the production of a box in a collapsed conditionthus obviating the troublesome and expensive operation of collapsing the box after it has been formed in order shipping A still further object is v\to. provide a method in which the partsofl the blank are folded into liat condition as the box is formed so that collapsing of the box after it is made is rendered unnecessary.

Another object is the provision of a method of forming a collapsible box which can be readily set up or opened when it is desired to use the same.

A further object is to provide an im roved method of making a box which can se carried out rapidly and eliiciently by means of machinery and which requires'practically no hand operation.

The invention is set forth in the following specification taken in connection with the accompanying drawings, forming a part thereof, it being understood, ofcourse, that various changes and modifications within the scope and sp1rit of the invention may be reb sorted to if desired. i

In said drawings: A

Fig. 1 is 'a plan view of one form ofblank which may be employed in making the box;

Fig. 2 is a similar view showing the first steps in making the box; in this view the two opposite edge portions of the blank are folded inwardly over the body of the blank; Fig. 3 illustrates a further step in which the edge portion of the blank opposite the cover is folded inwardly over the other edge portions, it being understood that in the final folding operation the edge portion including the'cover is folded d own upon the other portions;

Fig. 4 is a box showing formed; and h Fig. 5 is a lan View of a slightly modified form of blan Referring to the drawings more in-detail,

perspective view of a completed the same opened vup after being in partially folded condition.`

in producin a box according to the resent invention alank such as illustrated 1n Fig. 1 is emplo ed, and which may be made of fiber boar or any other suitable material. This blank comprises a main or body portion B and a cover portion C. The portion B of the blank is provided with two substantially parallel score lines a, a which extend across the blank from adjacent the cover C to the opposite side, and also with two substantially parallel score lines I), b arranged substantially at right angles to the lines a. The edge portions X, X of the blank outside Aof the lines a, a are of the proper and desired width to form two sides of the completed box. yThe edge portions Y, Y outside of the lines b, b similarly form the other two sides of the com leted box. The corners G of the blank outside of -the lines a, a and b, b, form gussets each of which extends be tween two adjacent ends of the edge portions X, Y.' Each of the gussets G is provided with a score line 10 which extends diagonally outwardly from the intersection of the lines a and b and which bisect the gussets or divide the same into two substantially equal portions 11 and 12. These portions will hereinafter and throughout the claims be designated respectively as inner and outer portions, that is, the inner portions will be understood as those portions l1 which border the folded sides X of the box and the outer portions will be understood as the portions 12 which border the sides Y of the A score line 13 is provided between the cover-portion C and the 'edge portion Y and another similar line 14 extends transverse of v the cover portion C adjacent the -free end thereof to form a flap C on the end of the cover. It will be understood that the score lines a, b 10, 11 and 12 are provided to facilitate fol ing of the blank along these lines. The constltute lines of fold. Scoring of the lank may be dispensed with if a mate rial is employed which would readily fold or bend along the lines where folding is desired.

In the form shown in Fig. 5, the only modification is that the corners of the main body portion of the blank are left square instead of being beveled olf. The result is that the gussets G are somewhat larger and yas a result the inner and outer portions 11 and 12 thereof are greater in area then the corresponding portions 11 and 12 of the other form. Also when such larger gussets are folded' against the side portions X, the upper edges of the same lie substantially flush with the tops of said side portions instead of below the same as shown in Fig. 4.

From the foregoing it will be understood that in forming the box, the edge portions X, X are first folded inwardly and downwardly over the body of the blank. A suitable glue or adhesive of any kind is then applied to the inner portions 11 ofthe gussets, such adhesive being indicated by the stippling ir Figs. 2 and 3. The edge portion Y opposite the,I cover C is then folded inwardly and downwardly over the portions X and finally the other edge rtion Y, including the cover C, is folded lnwardly and downwardly over the other portions. When the edge portions Y are folded as described, the gussets G are folded down upon the outer surfaces of the edge portions X, andsince the inner portions 11 are supplied with adhesive, such portions will be secured to the outer surfaces `.of the portions X. It is, of course, obvious that instead ofl applyinff the adhesive to the inner portions 11 ofP the gtillssets it might beapplied to the sections on t e outer surfaces of the portions X against which 'the portions 11 are folded.

After the blank is folded as described,v

the box is completed. It is in flat or'collapsed condition and therefore requires no further operation to prepare it for packing and shipment. When the box is to be used, it is only'necessary to lift the portions X and Y intovertical position. This can be readil done since these portions are in4 effect hingedly connected to the bottom of the box, When the Sides X and Y are lifted as described the gussets G take the position shown in Fig. 4. This is permitted by yreason of the fact that the outer portions 12 of the ssets are hingedly connected to the inner portions y11 and also to the adjacent ends of the edge portions Y. By reason of the adhesion of the inner portions 11 of the gussets to the side portions X itwill be evident that the sides of the finished box can not be turned outwardly beyond the position illustrated in Fig. 4, while at the same time the sides can be turned inwardly and the -box collapsed whenever desired. When in use the inwardcollapsing of the sides X and Y is prevented by the 4usual partition strips employed in eg boxes or by the contents of the box itsel The cover C of the box is hingedly connected to the side Y and can be turned down to cover the box, the flap C being inserted in the box to hold the cover in position.

Having thus described the invention, what is-claimed as new and desired to be secured by Letters Patent is:

1. The process of producing from a single which consists i'n folding two opposite edge.

blank between the lines offold forming t gussets which are folded down upon said first named folded portions during said second folding operations, and adlicsively securin the innerportion only of each of said folde gussets to the adjacent outer surface of said first named folded portions.

2. The process of producinglfrom a single blank a collapsible box incollapsed condition which consists in folding two opposite ed portions of the blank inwardly along s stantially parallel lines a and down over the body of the blank, folding the two op osite edge portions of the blank'along su stantially parallel lines and down upon said first named folded portions, the corners of the blank between said lines a and b forming gussets G `which are folded down upon the surface of said first named portions during said second folding operation, and securing the inner portion only of each of said ussets to the outer surface of the said named portion against which it is folded.

3. The processofroducing from. a single blank a` collapsible ox in collapsed condition which consists .in folding two opposite edge portion ofthe blank inwardly and downwardl applying adhesive to a limited area on the outer surface of said folded portions adj acent each end therof, folding the other lopposite edge portions of said blank inwardly and downwardly upon said firstnamed 4folded portions, the corners of the blank between said upon the body of the blnk,

rst

nes of fold forming gussets between said folded portions .which gussets are folded down upon said first named foldedportions durin said second folding operat-ion, lsaid adheslve being so placed as to secure the inner portion of each of said gussets to the adjacent outer surface of the first named folded portions.

4. The process of roducing from a sin le blank a collapsible ox in collapsed con tion which consists in folding two o posite edge portions of the blank inward y and downwardly over the body of the blank, folding the other two opposite edges of the blank 'inwardly and downwardly uponV said first named folded portions, the corners of said blank between the lines of fold forming gussets which are folded down upon said first named folded portions during said second folding operations, applying adhesive to the inner portlon of each of said gussets before said second folding operation, whereby said inner (portions of the gusse'ts are secured to the a blank a collapsible box in collapsed conditionnamed folded portions.

acent outer surfaces of said first condition which 5. The process Aof producing .from a single blank a collapsible box and cover in colla sed condition which consists in providing a blank having a cover 4forming ortion extending from one edge thereof, oldingl two opposite edge rtions of the blank inwardly and downwardly over the body of the blank, folding the edge ortion of the blank o posite said cover orming portion inward y and downwardly upon said first named folded portions, folding the remaining edge of the blank includ' sa'id cover forming portion inwardly an downwardly upon said first named folded portions, the corners of said blank forming gussets between said first named and second named folded. por- .tions which gussets are folded down upon said first named portions during said second and third folding operations, and adhesively securing the inner portion of each ofsaid gussets to the adjacent outer surface of `said first. named folded portions.

6. The process of producingfrom a single blank a collapsible box and cover in collapsed consists in providing a blank having a cover forming portion exto the first named lines,

tending from one edge thereof, scoring said blank along two substantially parallel lines extending across,l the blank from adjacent saidcover forming portion to the opposite edge of the blank scorin said blank along two other lines substantia y at right angles the corners of the blankbetween said first and second named lines forming gussets, bisecting each of said gussets by a score line extending diagonally outwardly from the intersect-ion of said first and second named lines, folding the op site edges of said blank inwardly and diiwnwardly along -said first named lines, applying adhesive to the inner ortion of each of said gussets beyond said isecting lines, folding the other two edges of said blank including said cover portion inwardly and downwardly along said second named lines and into contact with said first named folded portions, whereby the inner portions of said gussets are securedto the outer surfaces of said -frst named folded portions.

- In testimony whereof I hereunto aflix my signature.

FRANK M. JOSLIN. 

